Crossing incompatibility in some bean cultivars utilized in Brazil

By:

VIEIRA, A.L

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Material type: Article

ArticleLanguage: English Description: 12(1):169-171Subject(s): LOC classification:

36333

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In: Revista Brasileira de GeneticaSummary: En cruzamientos de cv. de frijol de semilla grande con otros de semilla pequena, se observo desarrollo anormal de las plantas hibridas y cero produccion de semillas. Esta barrera aparente limita el flujo espontaneo de genes entre diferentes cv. En un cruzamiento dialelico con 11 cv., 12 de los 55 hibridos obtenidos (21.8 por ciento) resultaron incompatibles. Se presentan los posibles genotipos de los cv. involucrados para ayudar a los mejoradores a cruzar solo los materiales compatibles. (RA-CIAT)Summary: In crosses involving common bean cultivars (Phaseolus vulgaris L.) that produce large seed with others that produce small seeds, abnormal development of the hybrid plants has been observed, and no seeds are produced. This apparent barrier limits the spontaneous flow of genes through different cultivars. In a diallel cross involving 11 cultivars, 12 of the 55 hybrids obtained (21.8 percent) were incompatible. The probable genotypes of the cultivars involved are presented in this paper to enable breeders to cross only compatible materials. (AS)

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Holdings
Item type	Current library	Collection	Call number	Copy number	Status	Date due	Barcode	Item holds
Journal Article	CIAT Library Document collection CINFOS	Document Collection CINFOS	36333 (Browse shelf(Opens below))	c.1	Short Loan		100044369

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En cruzamientos de cv. de frijol de semilla grande con otros de semilla pequena, se observo desarrollo anormal de las plantas hibridas y cero produccion de semillas. Esta barrera aparente limita el flujo espontaneo de genes entre diferentes cv. En un cruzamiento dialelico con 11 cv., 12 de los 55 hibridos obtenidos (21.8 por ciento) resultaron incompatibles. Se presentan los posibles genotipos de los cv. involucrados para ayudar a los mejoradores a cruzar solo los materiales compatibles. (RA-CIAT)

In crosses involving common bean cultivars (Phaseolus vulgaris L.) that produce large seed with others that produce small seeds, abnormal development of the hybrid plants has been observed, and no seeds are produced. This apparent barrier limits the spontaneous flow of genes through different cultivars. In a diallel cross involving 11 cultivars, 12 of the 55 hybrids obtained (21.8 percent) were incompatible. The probable genotypes of the cultivars involved are presented in this paper to enable breeders to cross only compatible materials. (AS)